Problems

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Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 2620 437 17% 0.01 564 317 56% 6.9
10 Kinds of People 3891 826 21% 0.01 714 479 67% 5.2
2048 3513 1753 50% 0.00 1700 1448 85% 2.5
3D Printed Statues 1705 842 49% 0.00 778 701 90% 2.0
3D Printer 174 42 24% 0.00 62 33 53% 7.1
3-Sided Dice 938 72 8% 0.00 161 56 35% 8.8
4 thought 3017 1036 34% 0.00 1057 876 83% 2.7
A1 Paper 1985 619 31% 0.00 613 478 78% 4.0
Aaah! 11281 5566 49% 0.00 4829 4512 93% 1.4
Abandoned Animal 193 52 27% 0.05 61 43 70% 6.9
ABC 3045 1443 47% 0.00 1373 1255 91% 1.6
Above Average 390 186 48% 0.00 189 173 92% 2.0
A+B Problem 2727 264 10% 0.06 433 145 33% 8.5
A Brief Gerrymander 60 17 28% 0.23 15 9 60% 7.0
Abstract Art 125 23 18% 0.00 23 16 70% 6.1
Absurdistan Roads II 440 153 35% 0.00 146 97 66% 6.9
Absurdistan Roads III 956 248 26% 0.04 237 173 73% 6.0
A Classy Problem 2986 808 27% 0.02 753 594 79% 4.2
ACM Contest Scoring 2926 1841 63% 0.00 1650 1563 95% 1.4
Adding Words 3630 786 22% 0.00 878 635 72% 4.2
A Different List Game 4311 294 7% 0.00 497 95 19% 9.1
A Different Problem 13265 5373 41% 0.00 4955 4303 87% 2.1
Adjoin the Networks 1020 272 27% 0.00 233 177 76% 6.1
Administrative Difficulties 423 105 25% 0.04 119 81 68% 5.6
Adventures in Moving -- Part IV 493 155 31% 0.00 144 120 83% 5.1
A Favourable Ending 732 146 20% 0.00 168 109 65% 5.2
A Feast For Cats 642 221 34% 0.56 173 144 83% 4.4
Air Conditioned Minions 1936 537 28% 0.00 581 433 75% 4.1
Airline Hub 1132 218 19% 0.01 217 129 59% 6.2
Airport Coffee 490 96 20% 0.12 89 68 76% 6.2
Airport Construction 1896 232 12% 0.04 181 101 56% 6.8
Airport Logistics 41 8 20% 0.00 13 8 62% 7.8
Airports 153 51 33% 0.22 49 33 67% 7.5
Akcija 1979 878 44% 0.01 825 724 88% 2.1
Aladin 612 54 9% 0.17 94 17 18% 8.2
Alchemy 36 9 25% 0.03 19 9 47% 8.2
Alea iacta est 22 11 50% 0.47 11 10 91% 5.3
Alice in the Digital World 399 105 26% 0.02 125 99 79% 3.1
Alice in the Digital World 230 65 28% 0.16 84 64 76% 3.7
Alien Numbers 1132 567 50% 0.00 551 502 91% 1.9
A List Game 4083 1170 29% 0.00 1114 919 82% 3.2
All about that base 1746 644 37% 0.00 695 572 82% 3.0
All Different Directions 364 183 50% 0.00 184 161 88% 2.6
Allergy Test 222 73 33% 0.00 56 31 55% 7.8
All Friends 503 100 20% 0.01 79 46 58% 8.6
All Just A Dream 784 194 25% 0.07 126 94 75% 5.4
All Pairs Shortest Path 2918 544 19% 0.03 380 250 66% 6.5
Almost Perfect 2504 600 24% 0.00 655 504 77% 3.4
Almost Union-Find 3181 451 14% 0.03 513 248 48% 7.3
Alphabet Spam 3250 2105 65% 0.00 1465 1406 96% 1.4
Alternative Bracket Notation 159 68 43% 0.00 71 61 86% 5.4
Amalgamated Artichokes 2393 1037 43% 0.01 927 812 88% 2.7
Amanda Lounges 921 226 25% 0.07 210 153 73% 6.2
A Mazing! 476 89 19% 0.20 77 60 78% 5.7
Amazing Race 224 61 27% 0.54 65 47 72% 7.4
Ambiguous Result 108 35 32% 0.04 44 33 75% 6.2
Amsterdam Distance 472 122 26% 0.00 177 119 67% 3.4
A Multiplication Game 42 13 31% 0.00 16 13 81% 5.0
Anagram Counting 1449 558 39% 0.00 561 461 82% 3.0
Andrew the Ant 78 26 33% 0.09 36 24 67% 7.0
Androids 288 100 35% 0.09 123 83 67% 5.8
A New Alphabet 5487 2519 46% 0.00 2391 2226 93% 1.6
Animal Classification 1051 206 20% 0.04 204 128 63% 7.0
An Industrial Spy 899 476 53% 0.02 377 329 87% 3.1
Another Brick in the Wall 1040 554 53% 0.00 554 502 91% 2.0
Another Candies 3783 1040 27% 0.00 1096 897 82% 2.7
Another Dice Game 58 41 71% 0.00 37 35 95% 3.5
Another Query on Array Problem 654 78 12% 0.08 150 65 43% 7.6
Anthony and Cora 356 107 30% 0.01 122 86 70% 4.8
Anthony and Diablo 838 300 36% 0.00 322 288 89% 2.1
Antiarithmetic? 560 134 24% 0.18 164 108 66% 6.0
Ants 1441 564 39% 0.01 478 410 86% 2.8
Apaxiaaaaaaaaaaaans! 4790 2961 62% 0.00 2693 2586 96% 1.3
Apparatus 457 109 24% 0.01 89 65 73% 5.6
Apple Market 315 69 22% 0.19 73 33 45% 8.8
Apples, Cherries, and Mangos 253 76 30% 0.02 70 56 80% 5.9
Aquarium Tank 209 62 30% 0.00 64 49 77% 4.7
Aqueduct Construction 74 18 24% 0.01 21 16 76% 7.5
A Question of Ingestion 309 68 22% 0.00 74 53 72% 6.6
Arable Area 201 38 19% 0.05 46 26 57% 8.5
A Rational Sequence 733 285 39% 0.00 281 231 82% 3.9
A Rational Sequence 2 581 436 75% 0.00 414 401 97% 1.5
A Rational Sequence (Take 3) 256 216 84% 0.00 164 158 96% 1.7
Arbitrage? 421 101 24% 0.05 83 69 83% 3.7
Arcade! 917 174 19% 0.01 160 118 74% 5.5
Arctic Network 884 335 38% 0.01 260 219 84% 4.1
A Real Challenge 3201 1561 49% 0.00 1521 1433 94% 1.5
Area of Effect 78 8 10% 4.74 13 6 46% 8.1
Arithmetic 824 195 24% 0.00 220 155 70% 4.7
Army Strength (Easy) 1657 893 54% 0.00 767 701 91% 1.9
Army Strength (Hard) 2218 999 45% 0.01 754 646 86% 2.9
Around and Around We Go 26 11 42% 0.00 15 10 67% 7.6
Around the track 6 1 17% 0.01 2 1 50% 6.5
Around the Track 187 30 16% 0.00 43 21 49% 8.9
Arranging Hat 175 74 42% 0.08 67 59 88% 4.0
Arranging Wine 19 8 42% 0.03 12 8 67% 7.5
Arriving on Time 62 17 27% 0.17 17 14 82% 5.5
Artur 206 34 17% 0.15 47 27 57% 7.8
Artwork 481 179 37% 0.06 174 109 63% 6.1
A Safe Bet 154 48 31% 0.27 44 35 80% 6.5